US9630802B2 - Wire reel, reinforcing bar binding machine, and rotational information detecting method - Google Patents

Wire reel, reinforcing bar binding machine, and rotational information detecting method Download PDF

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Publication number
US9630802B2
US9630802B2 US12/465,959 US46595909A US9630802B2 US 9630802 B2 US9630802 B2 US 9630802B2 US 46595909 A US46595909 A US 46595909A US 9630802 B2 US9630802 B2 US 9630802B2
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United States
Prior art keywords
light
wire reel
wire
transmitting portions
binding machine
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US12/465,959
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US20090283167A1 (en
Inventor
Yasushi Nakagawa
Kouji Katou
Tsuyoshi Kobayashi
Yu Yamamoto
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Max Co Ltd
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Max Co Ltd
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Assigned to MAX CO., LTD. reassignment MAX CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KATOU, KOUJI, KOBAYASHI, TSUYOSHI, NAKAGAWA, YASUSHI, YAMAMOTO, YU
Publication of US20090283167A1 publication Critical patent/US20090283167A1/en
Priority to US14/061,381 priority Critical patent/US9415970B2/en
Priority to US15/412,732 priority patent/US10047533B2/en
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Publication of US9630802B2 publication Critical patent/US9630802B2/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/122—Machines for joining reinforcing bars
    • E04G21/123—Wire twisting tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F15/00—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire
    • B21F15/02—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire
    • B21F15/04—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire without additional connecting elements or material, e.g. by twisting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
    • B65H49/18—Methods or apparatus in which packages rotate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/30—Devices controlling the forwarding speed to synchronise with supply, treatment, or take-up apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/04—Kinds or types
    • B65H75/08—Kinds or types of circular or polygonal cross-section
    • B65H75/14—Kinds or types of circular or polygonal cross-section with two end flanges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G01D5/3473—Circular or rotary encoders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/36—Wires
    • B65H2701/362—Tying wires, e.g. for tying concrete reinforcement rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/50—Storage means for webs, tapes, or filamentary material
    • B65H2701/52—Integration of elements inside the core or reel

Definitions

  • the present invention relates to a reinforcing bar binding machine which feeds a wire of a wire reel, winds the wire around a reinforcing bar in a loop shape, and then twists and binds the wire, a wire reel attached to a reinforcing bar binding machine body and having information display means of the type or the like of a wire reel, and a rotational information detecting method which detects the rotational information from an information detection region of the wire reel.
  • a wire reel around which a wire is wound is held at a rear portion of the binding machine, the wire is pulled out by feed gears of a wire feeding device from the wire reel and delivered forward when a switch is turned on and a trigger is operated, the wire is supplied in a loop shape from a curved portion of the tip of a guide arm and wound around a reinforcing bar, and then, a portion of the loop is held, and twisted, and turned by a twisting hook, thereby binding the reinforcing bar.
  • a device in which a side surface of the wire reel is provided with a display means which displays the type of a wire, the display means is detected by a detecting means provided in the reinforcing bar binding machine, the type of the wire is determined on the basis of a result detected by the detecting means, and the torsion torque is automatically adjusted (for example, JP-A-2005-194847).
  • this device By providing a portion of the wire reel in a convex shape, and detecting this convex shape by a contact type sensor provided in the binding machine body, this device performs detection of absolute rotation of the wire reel. Moreover, aside from this, a portion of a black recess formed at a side surface of the wire reel is provided with white projections, and rotation detection by a reflective photosensor provided in the binding machine body is also performed. By setting the interval of signal by two sensors to 90°, the number of the white projections per one rotation of the wire reel is detected, and feed/torsion control suitable for the wire diameter/wire type of consumable goods is made.
  • the bottom surface of the black recess of the wire reel is not a flat. Some stepped portions are formed. Accordingly, in a case where the white projections are detected by the reflective photosensor, all height differences within the recess as well as the white projections may be detected due to characteristics of the photosensor. Accordingly, as shown by a line 70 in FIG. 28 , erroneous detection occurs since output signals by the photosensor change and a voltage is not returned, and erroneous detection easily occurs even by attachment of sand or dust.
  • a first object of the invention is to provide a reinforcing bar binding machine capable of detecting the type of a wire or the feed amount of the wire by using the wire reel.
  • a second object of the invention is to provide a wire reel for a reinforcing bar binding machine capable of eliminating erroneous detection based on a height difference or the like, capable of receiving sufficient light by a light-receiving element even if the transmission of light is small, and capable of improving the resolution of a sensor.
  • a third object of the invention is to provide a method of detecting rotational information, such as the rotational amount of the wire reel or the type of a wire.
  • a reinforcing bar binding machine 1 is provided with: a binding machine body 2 ; a housing chamber 3 provided in the binding machine body 2 ; a wire reel 4 mounted in the housing chamber 3 ; a transmissive photosensor 26 having a light-emitting element 27 on one of both side walls 23 , 24 of the housing chamber 3 and a light-receiving element 28 on the other of both side walls 23 , 24 ; a plurality of light-transmitting portions 64 , 64 a , 64 b , 64 c , 64 d , 64 e formed on the wire reel 4 and for transmitting light emitted from the light-emitting element 27 ; and a control circuit 100 for determining rotational information of the wire reel 4 according to a number of the light-transmitting portions 64 , 64 a , 64 b , 64 c , 64 d , 64 e detected by the photosensor 26 during rotation of the wire
  • a transmissive photosensor having a light-transmitting element on one of both side walls of the housing chamber of the reinforcing bar binding machine and a light-receiving element on the other side wall
  • the wire reel is formed with a plurality of light-transmitting portions which allow the light emitted from the light-emitting element to be transmitted therethrough
  • a control circuit is provided to determine the rotational information of the wire reel according to the number of the light-transmitting portions detected by the photosensor during rotation of the wire reel.
  • the light generated in the light-emitting element and transmitted through the light-transmitting portions provided in the wire reel are detected by the light-receiving element, detection is allowed without being influenced by irregularity on the surface of the wire reel, and the detection accuracy of rotational information improves.
  • the light generated in the light-emitting element is directly detected by the light-receiving element, a sufficient quantity of light can be received by the light-receiving element even if a detection portion is smaller compared with a reflective photosensor, and the resolution of the sensor can be improved.
  • the resolution of the sensor improves, the accuracy of detection of the feed amount of a wire converted from the rotational amount of the reel also improves, and a decrease in the wire feed amount can be detected.
  • the wire reel 4 may include a plurality of information detection regions S 1 , S 2 to be detected by the transmissive photosensor 26 , and a number of the light-transmitting portions 64 , 64 a , 64 b , 64 c , 64 d , 64 e provided on one of the information detection regions S 1 , S 2 may be different with a number of the light-transmitting portions 64 , 64 a , 64 b , 64 c , 64 d , 64 e provided on another of the information detection regions S 1 , S 2 .
  • the wire reel is provided with an information detection region where detection is performed by the transmissive photosensor, and the information detection region is split into two or more information detection regions, and the light-transmitting portions are formed in the two or more information detection regions by numbers different from each other. Therefore, two kinds or more of rotational information can be detected according to the number of the light-transmitting portions only by rotating the wire reel.
  • a distance between one of the light-emitting element 27 and the light-receiving element 28 and an axial center P of the wire reel 4 may be smaller than a distance between the other of the light-emitting element 27 and the light-receiving element 28 and the axial center P of the wire reel 4 .
  • one of the light-emitting element and the light-receiving element is arranged nearer to the axial center of the wire reel than the other element. Therefore, it is not necessary to necessarily provide the optical axis from the light-emitting element parallel to the axial center of the wire reel. Thus, the degree of freedom of design increases.
  • a wire reel 4 is provided with: a cylindrical hub portion 43 on which a wire is wound; a pair of parallel flanges 44 , 45 overhanging outward from both radially outer ends of axial ends of the hub portion 43 ; a side wall 60 that is provided radially inside of the hub portion 43 and intersects with an axial direction of the wire reel; and a plurality of light-transmitting portions 64 , 64 a , 64 b , 64 c , 64 d , 64 e provided on the side wall 60 .
  • the wire reel detachably provided in a housing chamber of a binding machine body which binds a reinforcing bar.
  • the wire reel includes a cylindrical hub portion which winds a wire, and a pair of parallel flanges overhanging outward from both external peripheral ends of the hub portions.
  • a side wall inside the hub portion is used as an information detection region, and the information detection region is formed of a plurality of light-transmitting portions which allow the light from a transmissive photosensor provided in the binding machine body to be transmitted therethrough. Therefore, rotational information having different meanings, such as information as a measure which detects the rotational amount of the reel according to the array of the light-transmitting portions, and information for identifying the type of a reel can be given.
  • each of the light-transmitting portions 64 , 64 a , 64 b , 64 c , 64 d , 64 e may have a cross-section parallel to the axial direction in which one side in the axial direction is narrower than the other side in the axial direction. Moreover, each of the light-transmitting portions ( 64 , 64 a , 64 b , 64 c , 64 d , 64 e ) may have an opening in one side in the axial direction and an opening in the other side in the axial direction, and an area of the opening in the one side is smaller than an area of the opening in the other side.
  • the cross-section of the light-transmitting portions is formed so as to become narrower on the side of the light-emitting element of the transmissive photosensor and become wider on the side of the light-receiving element. Therefore, since the light from the light-emitting element is hardly reflected by the inner surfaces of the light-transmitting portions, and light which has transmitted through the light-transmitting portions reaches the light-receiving element without spreading so much, erroneous detection hardly occurs.
  • a distance from the side wall 60 to one of said axial ends of the hub portion 43 in said one side in the axial direction may be longer than a distance from the side wall 60 to the other of said axial ends of the hub portion 43 in said the other side in the axial direction.
  • each of the light-transmitting portions 64 , 64 a , 64 b , 64 c , 64 d , 64 e may have a slit-like long hole shape which is long in a radial direction.
  • the light-transmitting portions are formed as slit-like long holes which are long in the radial direction of the wire reel. Therefore, detection is allowed even if the axes of the light-receiving element and the light-emitting element are shaken due to vibration or the like during operation, and do not completely coincide with each other. Particularly, it is possible to effectively cope with radial deviation of an optical axis which is directed to the light-receiving element from the light-emitting element.
  • the light-emitting element and the light-receiving element cannot help being arranged in the position where the optical axis deviates from the axial center of the wire reel, and does not become parallel, due to constraints on attachment. Additionally, there is a possibility that the optical axis of the light emitted from the light-emitting element may deviate in the rotational direction or the radial direction of the wire reel even during the rotation of the wire reel.
  • the transmission portions which allow the light emitted from the light-emitting element to be transmitted therethrough are formed in a slit shape which is long in the radial direction of the wire reel, it is possible to cope with radial deviation of the optical axis which is directed to the light-receiving element from the light-emitting element.
  • each of the light-transmitting portions 64 , 64 a , 64 b , 64 c , 64 d , 64 e may be formed by plugging up each opening 72 formed in the wire reel 4 with a light-transmitting material 73 .
  • the light-transmitting portions are formed by plugging up openings formed in the wire reel with a light-transmitting material. Therefore, the inside of the wire reel can be protected, and the whole strength does not degrade so much.
  • the wire reel may further include an inner tube 40 coaxially formed axially inside of the hub portion 43 , wherein the side wall 60 is formed between the hub portion 43 and the inner tube 40 .
  • the wire reel may be mountable to a housing chamber 3 of a binding machine body 2 of a reinforcing bar binding machine 1 .
  • the light-transmitting portions 64 , 64 a , 64 b , 64 c , 64 d , 64 e may transmit light emitted from a light-emitting element 27 of a transmissive photosensor 26 provided on the binding machine body 2 , when the wire reel 4 is mounted to the housing chamber 3 .
  • Each of the light-transmitting portions 64 , 64 a , 64 b , 64 c , 64 d , 64 e may have a cross-section parallel to the axial direction in which a side of the light-emitting element 27 is narrower than a side of the light-receiving element 28 .
  • a gap may be provided between each of the light-transmitting portions 64 , 64 a , 64 b , 64 c , 64 d , 64 e and an outside surface of the inner tube 40 to such an extent that light from the light-emitting element 27 is prevented from being reflected by the outside surface of the inner tube 40 and being transmitted through the light-transmitting portions 64 , 64 a , 64 b , 64 c , 64 d , 64 e.
  • inner tube is coaxially formed inside the hub portion, the side wall is formed between the hub portion and the inner tube, a gap is provided between the light-transmitting portions and the outside surface of the inner tube to such an extent that the light from the light-emitting element is prevented from being reflected by the outside surface of the inner tube and being transmitted through the light-transmitting portions. Therefore, even if the light from the light-emitting element is reflected by the outside surface of the inner tube, the light hardly enter the light-transmitting portions, and erroneous detection can be prevented effectively.
  • each of the light-transmitting portions 64 b may be formed so as to extend toward an outer peripheral edge of the wire reel 4 from a transmission portion 71 through which light is transmitted from the light-emitting element 27 toward the light-receiving element 28 .
  • the light-transmitting portions are formed so as to extend toward an outer peripheral edge of the wire reel from transmission portions through which light is transmitted from the light-emitting element toward the light-receiving element. Therefore, the light-transmitting portions may be formed as holes. Additionally, the light-transmitting portions may not be formed straight.
  • each of the light-transmitting portions 64 c may be formed so as to extend toward an axial center of the wire reel from a transmission portion 71 through which light is transmitted from the light-emitting element 27 toward the light-receiving element 28 .
  • the light-transmitting portions are formed so as to extend toward the axial center of the wire reel from the transmission portion. Therefore, the light-transmitting portions may be formed as holes.
  • the light-transmitting portions 64 e may be continuous in portions excluding transmission portions 71 through which light is transmitted from the light-emitting element 27 toward the light-receiving element 28 .
  • the light-transmitting portions are continuous in portions excluding the transmission portions. Therefore, the light-transmitting portions may be apparently seen as one light-transmitting portion.
  • a rotational information in a reinforcing bar binding machine is detected by the method of: providing two information detection regions S 1 , S 2 by a photosensor 26 arranged in a binding machine body 2 on a wire reel 4 mountable to the binding machine body 2 of the reinforcing bar binding machine 1 ; providing light-transmitting portions 64 , 64 a , 64 b , 64 c , 64 d , 64 e on one of the information detection regions S 1 , S 2 in different numbers from the other information detection regions; providing, on the binding machine body 2 , a detecting means 32 which is capable of detecting ends of the two information detection regions S 1 , S 2 ; using a signal detected by the detecting means 32 as a timing signal for wire reel rotation; determining in which information detection region S 1 , S 2 had been detected according to the number of the light-transmitting portions detected between two timing signals; when it is determined that a rotational frequency information detection region
  • a wire reel detachably provided in a binding machine body which binds a reinforcing bar is provided with an information detection region by a photosensor arranged in the binding machine body, the information detection region is split into two information detection regions of a wire reel type information detection region, and a rotational frequency information detection region, and the reinforcing bar binding machine body, which is mounted with wire reels in which light-transmitting portions are formed by mutually different numbers, is provided with a detecting means capable of detecting ends of the two information detection regions.
  • a signal detected by the detecting means is used as a timing signal for wire reel rotation, and it is determined in which information detection region a wire reel exists according to the number of the light-transmitting portions detected between two timing signals.
  • a start position of the rotation of the wire reel is determined according to what number light-transmitting portion the photosensor has detected after the detecting means detects the timing signals at the time of start of the rotation of the wire reel, and a rotation stop position of the wire reel is determined according to what number light-transmitting portion the photosensor has detected after the detecting means detects a final timing signal at the time of stop of the rotation of the wire reel.
  • the feed amount of the wire detected from the feed means of the wire is compared with the feed amount of the wire converted from the rotational amount of the wire reel, and when the feed amount of the wire converted from the rotational amount of the feed gears is smaller than the feed amount of the wire converted from the rotational amount of the wire reel, the wire is fed excessively by the difference there between.
  • the control of correcting the feed amount is allowed by detecting the reduction.
  • a rotational information in a reinforcing bar binding machine is detected by the method of: providing two information detection regions S 1 , S 2 by a photosensor 26 arranged in a binding machine body 2 on a wire reel 4 mountable to the binding machine body 2 of the reinforcing bar binding machine 1 ; providing light-transmitting portions 64 , 64 a , 64 b , 64 c , 64 d , 64 e on one of the information detection regions S 1 , S 2 in different numbers from the other information detection regions; providing, on the binding machine body 2 , a detecting means 32 which is capable of detecting ends of the two information detection regions S 1 , S 2 ; using a signal detected by the detecting means 32 as a timing signal for wire reel rotation; determining in which information detection region S 1 , S 2 had been detected according to the number of the light-transmitting portions detected between two timing signals; and when it is determined a wire reel type information detection region S 2 is detected,
  • a wire reel detachably provided in a binding machine body which binds a reinforcing bar is provided with an information detection region by a photosensor arranged in the binding machine body, the information detection region is split into two information detection regions of a wire reel type information detection region and a rotational frequency information detection region, and the reinforcing bar binding machine body, which is mounted with wire reels in which light-transmitting portions are formed by mutually different numbers, is provided with a detecting means capable of detecting ends of the two information detection regions.
  • a signal detected by the detecting means is used as a timing signal for wire reel rotation, and it is determined in which information detection region a wire reel exists according to the number of the light-transmitting portions detected between two timing signals.
  • the type of a wire reel is determined according to the number of the light-transmitting portions in the wire reel type information detection region. Therefore, according to the type of the wire reel, it is possible to set the feed amount of a wire by the wire feed means instantaneously, or to set torsion torque or the like of a wire by the supply power of an electric motor.
  • FIG. 1 is a perspective view of the outline of a reinforcing bar binding machine according to an exemplary embodiment of the invention from which a one-side cover is removed.
  • FIG. 2 is a perspective view when the reinforcing bar binding machine is seen from the rear.
  • FIG. 3 is a side view in a state where a wall member of the reinforcing bar binding machine is removed.
  • FIG. 4 is a sectional view on a line a-a of FIG. 3 .
  • FIG. 5 is a sectional view on a line b-b of FIG. 3 .
  • FIG. 6 is a perspective view of the reinforcing bar binding machine from which a wire reel of FIG. 2 is removed.
  • FIG. 7 is a perspective view showing the inside of a housing chamber by opening the wall member.
  • FIG. 8 is a top view of the reinforcing bar binding machine from which a wire reel of FIG. 3 is removed.
  • FIG. 9 is a sectional view of essential portions showing a state where a sensor is arranged.
  • FIG. 10 is a plan view showing the positional relationship between the contact sensor and the wire reel.
  • FIG. 11 is a block diagram of a control circuit.
  • FIG. 12 is a side view of the wire reel.
  • FIG. 13 is a side view of the side of the wire reel opposite to FIG. 10 .
  • FIG. 14 is a sectional view on a line c-c of FIG. 10 .
  • FIG. 15 is a sectional view on a line d-d line of FIG. 10 .
  • FIG. 16 is a sectional view on a line e-e of FIG. 10 .
  • FIG. 17 is a sectional view showing a form which is not preferable.
  • FIG. 18 is a front view of the wire reel.
  • FIG. 19 is a sectional view on a line f-f of FIG. 16 .
  • FIG. 20 is a side view showing details of an information detection region of the wire reel.
  • FIG. 21 is a chart showing the output waveform during the rotation of the wire reel.
  • FIG. 22 is a flow chart showing detection of the rotational amount of the wire reel.
  • FIG. 23 is a chart showing a range where the start and end of rotation can be detected.
  • FIG. 24 is a side view of the form of another wire reel.
  • FIG. 25 is a sectional view on a line g-g of FIG. 22 .
  • FIG. 26 is a side view of a wire reel in which the same number of light-transmitting portions are provided in different information detection regions.
  • FIGS. 27( a ) and 27( b ) are side views of the wire reel showing a form including a circular light-transmitting portion.
  • FIG. 28 is a chart showing the output waveform of a conventional sensor.
  • FIGS. 29( a ), 29( b ), and 29( c ) are respectively a side view showing another form of the light-transmitting portion of the wire reel, an enlarged view thereof, and a sectional view on a line h-h.
  • FIGS. 30( a ), 30( b ), and 30( c ) are respectively a side view showing still another form of the light-transmitting portion of the wire reel, an enlarged view thereof, and a sectional view on a line i-i.
  • FIGS. 31( a ), 31( b ), and 31( c ) are respectively a side view showing a still further form of the light-transmitting portion of the wire reel, an enlarged view thereof, and a sectional view on a line j-j.
  • FIG. 32 is an enlarged view of a still further form of the light-transmitting portion of the wire reel.
  • reference numeral 1 represents a reinforcing bar binding machine.
  • the reinforcing bar binding machine 1 mounts a wire reel 4 around which a wire 5 for binding of a reinforcing bar is wound on a housing chamber 3 provided in a binding machine body 2 , delivers the wire 5 while rotating the wire 5 , and winds and then twists the wire 5 around a reinforcing bar 6 , thereby binding the reinforcing bar 6 .
  • the binding machine body 2 is provided with a guide pipe 7 which allows the wire 5 pulled out from the wire reel 4 to pass therethrough.
  • One end 7 a of the guide pipe 7 is opened to the housing chamber 3 , and the other end thereof is located in front of a guide portion 11 which will be described later.
  • a pair of feed gears 8 as a feeding means of the wire 5 is disposed in an intermediate portion of the guide pipe 7 .
  • the wire 5 is sandwiched by feed rollers formed integrally with the feed gears 8 , and the wire 5 is delivered forward by an electric motor (not shown).
  • a guide portion 11 which gives a curling habit is formed at the tip of the guide pipe 7 so that the wire 5 fed into the binding machine body 2 goes out in a curled shape.
  • the tip of the guide portion 11 is curved in a circular-arc shape.
  • the wire is given a curling habit, and is wound around the reinforcing bar 6 between the guide portion 11 and the lower guides 12 .
  • a wire cutting means (not shown) is disposed at the guide portion 11 .
  • the wire cutting means is configured so as to cut the wire 5 .
  • a pair of patch plate portions 13 patched to the reinforcing bar 6 is formed at a lower portion of a front end of the binding machine body 2 directed to the reinforcing bar 6 , and a wire twisting device 17 which has a twisting hook 14 provided at a tip portion thereof between the pair of patch plate portions 13 .
  • the wire twisting device 17 makes the sleeve 15 on which a hook 14 pivots openably and closably move forward by an electric motor 16 a to operate to close the hook 14 , thereby gripping the wire 5 wound in a loop shape around the reinforcing bar 6 engaged with the patch plate portions 13 , and then makes the hook 14 rotate along with the sleeve 15 , thereby twisting the wire 5 to bind the reinforcing bar 6 . Thereafter, the wire twisting device makes the hook 14 rotate reversely and makes the sleeve 15 move back, thereby separating the sleeve 15 from the wire 5 , and returning the sleeve 15 to its initial position. In addition, when the wire twisting device 17 operates, the sleeve 15 which has moved forward drives the wire cutting means during its movement, and thereby, the wire is cut. Immediately after that, twisting of the wire 5 is performed.
  • a wire feeding device by the rotation of the feed gears 8 is driven by the electric motor 16 a (refer to FIG. 1 ), and the twisting device 17 is driven by an electric motor 16 b (refer to FIG. 4 ).
  • the operation or the like of the wire feeding device and the twisting device 17 is sequence-controlled by a control circuit.
  • the electric motor 16 a is provided with a rotation detection sensor by which the rotational amount of the feed gears 8 is detected, and a signal from the sensor is fed back to the control circuit.
  • the housing chamber 3 is constituted by a front wall 21 , a bottom wall 22 , and side walls 23 and 24 which are provided between the binding machine body 3 , and a wall member 18 provided in the binding machine body.
  • One side wall 23 is formed on the side of the binding machine body 2
  • the other side wall 24 is formed at the wall member 18 .
  • a central portion of the side wall 23 on the side of the binding machine body 2 is formed with a circular protrusion 25 .
  • a reel attachment shaft 20 is provided in the position corresponding to the circular protrusion 25 in the wall member 18 so as to protrude to and retract from the housing chamber 3 .
  • the circular protrusion 25 and the reel attachment shaft 20 are disposed on the same axis to support the wire reel 4 rotatably.
  • the wall member 18 can be opened and closed as shown in FIG. 6 , generally, the wall member is fixed to the binding machine body 3 with screws.
  • the reel attachment shaft 20 is provided so as to protrude and retract so that the wire reel 4 can be mounted, and is able to be locked in a state where it has protruded into the housing chamber 3 .
  • a transmissive photosensor 26 is arranged at both the side walls 23 and 24 .
  • the photosensor 26 is composed of a light-emitting element 27 and a light-receiving element 28 , the light-emitting element 27 is provided in a position in the vicinity of the reel attachment shaft 20 of the wall member 18 , and the light-receiving element 28 is provided at the circular protrusion 25 on the side of the binding machine body 2 . Since the circular protrusion 25 fit into an annular recess 47 (refer to FIG. 5 ) of the wire reel, ambient light can be prevented from entering the light-receiving element 28 .
  • a contact sensor 32 is provided at an upper opening 39 (refer to FIG. 7 ) of the circular protrusion 25 in one side wall 23 of the housing chamber 3 .
  • the contact sensor 32 is a mechanical switch, and as shown in FIG. 4 , is constituted by a rocking member 34 which is rockably provided at a pivot 33 , a contact piece 35 which is provided at the tip of the rocking member 34 , a resilient member (not shown) which biases the contact piece 35 toward the wire reel 4 , a magnet portion 37 which is provided at the other end of the rocking member 34 , and a Hall IC 38 which contact the magnet portion 37 by the resilient member.
  • the contact sensor 32 is provided within the binding machine body 2 , and is constituted by a movable contact piece 35 which protrudes into the housing chamber 3 from an opening formed to pass through the side wall 23 , and the magnet portion 37 provided inside the movable contact piece 35 , and the Hall IC 38 .
  • Projections 41 and 42 (refer to FIGS. 9 and 10 ) provided at the wire reel 4 are provided on the movable contact piece 35 so as to be able to contact the contact piece.
  • the movable contact piece 35 of the contact sensor 32 is located right above the circular protrusion 25 , and the light-receiving element 28 of the transmissive photosensor 26 is arranged substantially right below the movable contact piece.
  • an output signal of the photosensor 26 is transmitted to the control circuit shown in FIG. 11 .
  • the contact sensor 32 is also connected to the control circuit, and an output signal according to a change in the voltage of the Hall IC 38 is also transmitted to the control circuit.
  • the front wall 21 of the housing chamber 3 is provided with a resilient piece 54 which is engageable with the wire reel 4 .
  • the wire reel 4 is engaged with the resilient piece 54 by an electric motor to stop rotation.
  • the wire reel 4 is formed of plastics, such as ABS resin, polyethylene, and polypropylene which have excellent resistance against wear or bending, and is made of black plastics so that ambient light does not enter.
  • the wire reel 4 is detachably provided in the housing chamber 3 provided in the binding machine body 2 (refer to FIG. 2 ), and is composed of a hub portion 43 which winds the wire 5 , and disk-like flanges 44 and 45 which are provided on both sides of the hub portion 43 .
  • the hub portion 43 is formed in a cylindrical shape, and is formed integrally with the pair of flanges 44 and 45 .
  • An outer periphery of one flange 44 is formed with an engaging pawl 46 which is engageable with the resilient piece 54 for a brake of the housing chamber 3 .
  • the flange 45 is formed with an annular recess 47 which is engageable with the circular protrusion 25 of the reinforcing bar binding machine 1 , and a ring-shaped boss 48 is formed so as to surround the annular recess 47 .
  • An outer peripheral edge of the boss 48 is provided with a tapered surface 50 .
  • a bottom portion of the annular recess 47 extends to near an end surface of an inner tube 40 which is shown below.
  • the pair of trapezoidal projections 41 and 42 is formed on mutually opposite sides of the inner tube 40 at the outer peripheral edge 50 of the boss 48 .
  • Oblique edges 55 are formed on both sides of the projections 41 and 42 .
  • a central portion of the hub portion 43 is formed with the inner tube 40 which is substantially coaxial with the hub portion 43 , and an attaching hole 56 (refer to FIG. 5 ) which can be fit to the reel attachment shaft 20 of the wall member 18 of the reinforcing bar binding machine 1 is formed inside the inner tube 40 .
  • the inner tube 40 and the hub portion 43 are connected together by a side wall 60 .
  • the wall thickness of the inner tube 40 is not uniform. As shown in FIG. 15 , the inner tube is thicker at the flange 44 than the middle thereof, and is formed so as to have a smaller wall thickness at the flange 45 . This is because the wall thickness of a side portion 58 of teeth 57 is made large in order to secure strength in order to make a rotary shaft of a winding device (not shown) mesh with the teeth 57 formed at the end of the inner tube 40 on the side of the flange 44 , thereby forcibly winding the wire reel 4 , when a wire is wound around the wire reel 4 .
  • the side wall 60 is formed at the boundary between a thick-walled portion 58 and a thin-walled portion 59 .
  • the sidewall 60 is located slightly nearer to the flange 45 than the middle thereof, and the circular recess 47 is formed by internal surfaces of the inner tube 40 and the hub portion 43 .
  • the outer peripheral edges of the flanges 44 and 45 are formed with reinforcing ribs 61 .
  • the flange 44 is formed with a wire insertion opening 62 which extends from the outer peripheral edge toward the hub portion 43 .
  • a winding termination end of the wire 5 is locked and held by the wire insertion opening 62 .
  • a wire insertion hole 63 is formed in the hub portion 43 and inner tube 40 .
  • a winding starting end of the wire 5 is locked and held by the wire insertion hole 63 .
  • the winding starting end of the wire 5 is inserted into the wire insertion hole 63 , and is wound within the inner tube 40 so as to prevent the winding starting end from slipping out of the wire insertion hole 63 . In this state, winding around an inner peripheral surface of the hub portion 43 is started. Additionally, even if a force in a winding direction of a wire 5 acts strongly, a tension can be received by the edge of the wire insertion hole 63 .
  • the side wall 60 is formed with transmission holes 64 serving as a light-transmitting portion for detecting the rotational position of a wire reel 4 or the type of a wire.
  • These transmission holes 64 transmit the light from the light-emitting element 27 of the transmissive photosensor 26 (refer to FIG. 5 ) provided in the binding machine body 2 , and are formed on a circumference about the axial center of the wire reel 4 , i.e., the axial center of the inner tube 40 .
  • the light-emitting element 27 and the light-receiving element 28 is arranged so that the light-emitting element 27 becomes distant from the axial center P of the wire reel 4 , and the light-receiving element 28 becomes close to the axial center P of the wire reel 4 due to constraints of attachment, and an optical axis 65 deviates the axial center P of the wire reel 4 . Additionally, there is a possibility that the optical axis 65 of the light emitted from the light-emitting element 27 may deviate in the rotational direction or the radial direction of the wire reel 4 even during the rotation of the wire reel 4 .
  • the transmission holes 64 are formed as long holes which are long in the radial direction from the axial center P of the wire reel 4 .
  • the width of the transmission holes 64 requires a width of about 1.5 mm to 2.5 mm in order to obtain high resolution and cope with deviation in the rotational direction.
  • the transmission holes just have to be formed in the vicinity of the position corresponding to the optical axis, i.e., the axial center of the wire reel 4 .
  • the light which is transmitted through the transmission holes 64 spreads.
  • the transmission holes 64 are brought close to the inner wall surface 66 of the inner tube 40 as shown by one-dot chain line in FIG. 17 , the light emitted and spread from the light-emitting element 27 strikes the inner wall surface 66 and is reflected therefrom before reaching the transmission holes 64 , and the reflected light reaches the light-receiving element 28 , which causes erroneous detection.
  • the transmission holes 64 are formed straight, there is a possibility that a portion of the light from the light-emitting element 27 may strike inner surfaces 67 of the holes, and be reflected therefrom. This also causes erroneous detection when the reflected light reaches the light-receiving element.
  • the transmission holes 64 be spaced from the outer wall surface 66 of the inner tube 40 so that reflected light at the surfaces in front of the transmission holes 64 is not received, and opening ends of the transmission holes 64 are made as small as possible so as to make it difficult for reflected light to enter the holes.
  • the inner surfaces 67 are chamfered and the sections thereof in the rotational direction may be formed in a tapered shape so that light is not reflected by the inner surfaces 67 of the transmission holes 64 , and so as to have almost the same angle as the angle of the incident light which has entered from the opening ends of the transmission holes 64 .
  • the side wall 60 where the transmission holes 64 are formed in a position slightly nearer to the light-receiving element 28 than the middle between the light-emitting element 27 and the light-receiving element 28 .
  • the reel attachment shaft 20 of the wall member 18 shown in FIG. 5 may be made to retreat from the housing chamber 3 , thereby putting the wire reel 4 into the housing chamber 3 , the annular recess 47 of the wire reel 4 may be fitted to the circular protrusion 25 formed on the side wall 24 of the housing chamber 3 , and the reel attachment shaft 20 may be inserted into and locked to the attaching hole 56 of the wire reel 4 .
  • a transmissive photosensor having a light-transmitting element on one of both side walls of the housing chamber of the reinforcing bar binding machine and a light-receiving element on the other side wall
  • the wire reel is formed with a plurality of transmission holes which allow the light emitted from the light-emitting element to be transmitted therethrough
  • a control circuit is provided to determine the rotational information of the wire reel according to the number of the light-transmitting holes detected by the photosensor during rotation of the wire reel.
  • the light generated in the light-emitting element and transmitted through the transmission holes provided in the wire reel are detected by the light-receiving element, detection is allowed without being influenced by irregularity on the surface of the wire reel, and the detection accuracy of rotational information improves.
  • the light generated in the light-emitting element is directly detected by the light-receiving element, a sufficient quantity of light can be received by the light-receiving element even if a detection portion is smaller compared with a reflective photosensor, and the resolution of the sensor can be improved.
  • the resolution of the sensor improves, the accuracy of detection of the feed amount of a wire converted from the rotational amount of the reel also improves, and a decrease in the wire feed amount can be detected.
  • the transmission holes are formed as slit-like long holes which are long in the radial direction of the wire reel, detection is allowed even if the axes of the light-receiving element and the light-emitting element are shaken due to vibration or the like during operation, and do not completely coincide with each other.
  • the light-emitting element and the light-receiving element cannot help being arranged in the position where the optical axis deviates from the axial center of the wire reel, and does not become parallel, due to constraints on attachment. Additionally, there is a possibility that the optical axis of the light emitted from the light-emitting element may deviate in the rotational direction or the radial direction of the wire reel even during the rotation of the wire reel.
  • the transmission holes which allows the light emitted from the light-emitting element to be transmitted therethrough are formed in a slit shape which is long in the radial direction of the wire reel, it is possible to cope with radial deviation of the optical axis.
  • one of the light-emitting element and the light-receiving element can be arranged nearer to the axial center of the wire reel than the other element, and it is not necessary to necessarily provide the optical axis from the light-emitting element parallel to the axial center of the wire reel.
  • the degree of freedom of design increases.
  • the wire reel 4 is formed with two information detection regions to be detected by a transmissive photosensor.
  • One information detection region (first information detection region S 1 ) is formed with three transmission holes 64
  • the other information detection region (second information detection region S 2 ) is formed with one transmission hole 64 .
  • the information detection regions S 1 and S 2 are regions where the transmission holes 64 can be detected between two signals which are output as the two projections 41 and 42 are detected by the contact sensor 32
  • the three transmission holes 64 of the first information detection region S 1 are formed on lines which form 40° mutually between a borderline Q between the first information detection region S 1 and the second information detection region S 2 .
  • the transmission hole 64 of the second information detection region S 2 is formed near the right side of the drawing.
  • the detected wave shown in FIG. 21 was obtained. According to this, since only the light transmitted through the transmission holes 64 is detected, the accuracy of detection improves without being influenced by irregularities of the surface of the wire reel 4 . That is, if the diameter of a detected portion should be about 8 mm in a reflective photosensor, the transmissive photosensor 26 can perform detection even in the transmission holes 64 with a width of about 2 mm. For this reason, the resolution of the sensor improves to about 40°. Accordingly, although the three transmission holes 64 are provided in the first information detection region S 1 at every angle of rotation of 40° in the above-described embodiment, sufficiently high resolution can be exhibited even if four transmission holes 64 are provided.
  • the first information detection region S 1 of the wire reel 4 is able to fix the number of the transmission holes 64 to detect rotational amount, and change the number of the transmission holes 64 of the second information detection region S 2 according to the type of the wire reel 4 , thereby detecting the type of the wire reel 4 .
  • the resolution of the photosensor 26 improves, whereby the amount of information of the wire reel 4 increases.
  • different kinds of information such as information as a measure which detects the rotational amount of the wire reel 4 by an array method of the transmission holes 64 or information which identify the type of the wire reel 4 , can be given.
  • a detection signal of the projections 41 and 42 by the contact sensor 32 are output whenever the first information detection region S 1 that is an upper half, and the second information detection region S 2 that is a lower half are rotated by every half-circumference.
  • This detection signal becomes a timing signal for reference.
  • FIG. 21 while the next reference signal R 2 is output from a reference signal R 1 , three detection signals S 1 , S 2 , and S 3 in the information detection region S 1 and one detection signal S 4 in the information detection region S 2 are output according to the number of the transmission holes 64 detected by the photosensor 26 whenever the wire reel 4 rotates by every half-circumference.
  • the rotation start position and stop position of the wire reel 4 can be detected in the following way.
  • Step 101 when the wire reel 4 is mounted on the binding machine body, and is rotated, either the contact sensor 32 or the photosensor 26 previously detects the transmitted light of the projections 41 and 42 which are detected portions, or the light-emitting element 27 (Step 101 ). That is, when the wire reel 4 rotates, and the projection 41 and 42 of the wire reel 4 contacts the movable contact piece 35 of the contact sensor 32 , the movable contact piece 35 rocks, the magnet portion 37 is separated from the Hall IC 38 , and a pulse signal according to a change in voltage is transmitted to the control circuit of FIG. 11 .
  • a detection signal is transmitted to the control circuit.
  • the control circuit detects the fluctuation of the output voltage of the sensor 32 or 26 generated by the detection signal, and calculates the number of the projections 41 and 42 or the transmission holes 64 .
  • the process proceeds to the left flow of FIG. 22 .
  • the wire reel 4 is in the region of A, B, C, or E of a FIG. 20 .
  • the wire reel is in the position of D, since the contact sensor 32 detects the projection 41 or 42 previously (Step 102 ), this case is not applied.
  • Step 103 it is determined how many times the control circuit has detected the transmitted light until the next projection 42 or 41 is detected.
  • detection start position is either C region or E region. If the detection start position is the E region, since the rotational angle from one end of the region to the other end thereof, an error is large in detecting rotational amount. Since whether the detection start position is the C region or the E region cannot be determined, rotation is not detected in this case (Step 104 ).
  • the detection start position is either A region or B region.
  • the number of times of detection, whether it is two times or threes times, of the photosensor 26 i.e., whether the detection start position is the A region or the B region is stored (Step 105 ).
  • Step 106 binding operation is continued until the wire reel 4 stops (Step 106 ).
  • Steps 107 and 108 rotation is not detected until the number of times of detection by the contact sensor 32 is twelve or more in an accumulating total, i.e., until the wire reel 4 rotates six times or more.
  • the relationship between the rotational amount of the wire reel 4 and the feed amount of the wire 5 is unstable at early and middle stages of rotation. That is, the possibility that the wire 5 is wound around the wire reel 4 with looseness at the early and middle stages of rotation is high. In this case, the rotational amount of the wire reel 4 decreases compared with the feed amount of the wire 5 .
  • the feed amount of the wire can be accurately calculated on the basis of the rotational amount of the wire reel 4 .
  • Step 109 When the number of times of detection by the contact sensor 32 is twelve or more in an accumulating total, waiting is performed until the wire reel 4 stops rotation, the contact sensor 32 detects a projection finally, and it is then determined how many times the photosensor 26 has detected the transmitted light (Step 109 ). If the number of times of detection is three times, the wire reel 4 stops in the region of D. In this case, the state of A is checked (Step 110 ), and the rotation of the wire reel 4 is detected (Step 111 ). When the number of times of detection is two times, the wire reel stops in the region of C. In this case, the state of A is checked (Step 112 ), and the rotation of the wire reel 4 is detected (Step 113 ).
  • the stop position of the wire reel 4 is the C region or E region. Additionally, when the number of times of detection is zero time, the stop position of the wire reel 4 is A region or E region. Since all the stop positions include the E region, detection of rotation is not performed due to the above-described reason (Step 114 ).
  • Step 115 when the contact sensor 32 previously detects light before the photosensor 26 , the process proceeds to the right flow of FIG. 22 .
  • the projection 41 or 42 is previously detected is when the detection start position is in D region or E region (Step 115 ).
  • Step 116 it is determined how many times the control circuit has detected the transmitted light until the next projection 42 or 41 is detected. If the transmitted light has been detected three times, since the detection start position is E region, rotation is not detected in this case (Step 117 ).
  • Step 119 rotation is not detected until the number of times of detection of the contact sensor 32 is twelve or more in an accumulating total (Step 119 ), i.e., until the wire reel 4 rotates six times or more (Step 120 ).
  • Step 121 When the number of times of detection of the contact sensor 32 is twelve or more in an accumulating total, waiting is performed until the wire reel 4 stops rotation, the contact sensor 32 detects the projection 41 or 42 finally, and it is then determined how many times the photosensor 26 has detected the transmitted light (Step 121 ). If the number of times of detection is zero or one time, the wire reel 4 stops in any of the E region, the A region, and the B region. Since this case includes the E region, detection of rotation is not performed due to the above-described reason (Step 122 ).
  • the detection start position is the C region or the D region. In this case, the rotation of the wire reel 4 is detected (Step 123 ).
  • the rotational frequency of the wire reel 4 can be detected when the rotation start position and rotation stop position shown in FIG. 23 have been read. If the rotational frequency of the wire reel 4 at the last stage of rotation can be detected, the feed amount of the wire can be converted from this rotational amount.
  • the above transmissive sensor 26 detection of the rotational amount of the wire reel 4 can be detected at a pitch of 40°. Since the signal interval is 40°, the ranges where rotation cannot be detected immediately after start of rotation of the wire reel 4 and immediately before stop of rotation thereof are respectively 40°. Therefore, the error of rotation detection of 80° at the maximum per 1 binding occurs. As for this error, the detection error of the wire feed amount becomes about 24 mm at the last stage of rotation of the wire reel 4 . In contrast, the case where the wire feed amount is insufficient and poor binding occurs is the case where the feed amount runs short of 40 mm or more. Accordingly, if there is this level of resolution, the feed decrease amount of 40 mm can be detected, and correction of the feed amount can be sufficiently performed.
  • the control circuit compares the feed amount of the wire 5 obtained by the rotation of the feed motor 16 a which constitutes the wire feeding device with the feed amount of the wire 5 converted from the rotational amount of the wire reel 4 , and increases the rotational frequency of the feed motor 16 a and compensates a feed insufficiency when it is determined that the feed amount by the feed gears 8 is insufficient. By such processing, the feed of a wire is checked double, and a good binding state can always be maintained.
  • two kinds of wires can be determined according to whether the transmission hole 64 is detected or not detected by providing the second information detection region S 2 with the wire reel 4 in which one transmission hole 64 is formed, and the wire reel 4 in which no transmission hole 64 is formed, as the shown form.
  • whether or not a region is the second information detection region S 2 can be identified according to whether there are two or more signals by the transmission holes 64 between signals output by two projections.
  • the control circuit instantaneously sets torsion torque by the feed amount of the wire 5 according to the rotational frequency (rotational angle) of the wire feed gears 8 or supply power of the electric motor 16 b according to the kind of the wire.
  • the side wall inside the hub portion of the wire reel 4 is used as an information detection region, and this information detection region is provided with a plurality of transmission holes which allows the light from the transmissive photosensor provided in the binding machine body to be transmitted therethrough. Therefore, rotational information having different meanings, such as information as a measure which detects the rotational amount of the reel according to the array of the transmission holes, and information for identifying the type of a reel can be given only by rotating the wire reel 4 .
  • the sensor which sends a reference signal which detects the rotational amount of the wire reel 4 is not limited to the above mechanical sensor.
  • a pair of white marks 51 and 51 may be provided on a side surface 68 of the side wall 60 on the side of the flange 45 so as to correspond to the projections 41 and 42 shown in FIG. 10 , and these marks may be detected by the reflective photosensor 26 provided in the circular protrusion 25 on the side of the binding machine body 2 .
  • the number of the transmission holes 64 in the first information detection region S 1 is not limited to the above-described form. If one transmission hole is increased, the reading frequency of the start position of rotation can be further increased, and the type of three or more kinds of wires can also be determined.
  • the information detection region is also not limited to a form in which the region is split into half circumferences.
  • a rotational frequency information detection region where the rotational frequency of the wire reel 4 is detected may be set to 120°
  • a type information detection region where the type of a wire is determined may be set to 60°.
  • the information detection regions may be suitably determined according to the number of rotation information and resolution.
  • the transmission holes 64 of the information detection region S 1 for detection of rotational amount, and the transmission holes 64 of the information detection region S 2 for determination of reel type may be formed by the same number. In this case, if the number of detection of rotational amount is determined, the other becomes type information.
  • the information detection region is also not limited to a form in which the region is split into two. Since the information detection region may be provided according to the kind of required information, the region may be split into three or more information regions.
  • the transmission holes are not limited to being slit-like.
  • the transmission holes may be circular transmission holes 64 a , or square transmission holes.
  • the type of wires is only two or three, for distinguishing these, high resolution is not necessarily required in determining the type of wires.
  • circular or rectangular transmission holes may be used.
  • circular transmission holes 64 and slit-like transmission holes 64 may be combined together.
  • a light-transmitting portion 64 b may be formed so as to extend toward the outer peripheral edge of the wire reel 4 from a transmission portion 71 through which light is transmitted from a light-emitting element to a light-receiving element.
  • the end of the light-transmitting portion 64 b may be formed so as to be opened to an outer peripheral edge 70 of one flange of the wire reel 4 .
  • the transmission portion may not be formed straight.
  • the transmission portion may be curved.
  • a light-transmitting portion 64 c may be formed so as to extend toward the center of the wire reel 4 .
  • the end of the light-transmitting portion 64 c may be formed so as to be opened to the inner tube 40 of the wire reel 4 , or may be curved.
  • the respective light-transmitting portions 64 d may have a configuration in which an opening 72 formed in the wire reel 4 is plugged up by a light-transmitting material 73 .
  • the number of light-transmitting portions is the number of portions through which light is transmitted from a light-emitting element toward a light-receiving element. As shown in FIG. 32 , even if three light-transmitting portion 64 e are connected via connecting portions 74 in the portions excluding portions 71 through which light is transmitted from the light-emitting element toward the light-receiving element so that they are apparently seen as one, the light-transmitting portions are not one but three.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10532838B2 (en) * 2006-10-27 2020-01-14 Husqvarna Ab Consumable authentication

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5534054B2 (ja) * 2008-05-19 2014-06-25 マックス株式会社 回転情報の検出方法
JP5532610B2 (ja) 2008-05-19 2014-06-25 マックス株式会社 ワイヤリール及び鉄筋結束機
CN103832890A (zh) * 2014-02-24 2014-06-04 润邦卡哥特科工业有限公司 可旋转调节式软管支架及其应用
WO2016005838A1 (en) * 2014-07-07 2016-01-14 Cembre S.P.A. Method of operating a hydrodynamic compression tool and hydrodynamic compression tool
JP6473394B2 (ja) * 2015-07-13 2019-02-20 株式会社マキタ 鉄筋結束装置
JP6530990B2 (ja) * 2015-07-13 2019-06-12 株式会社マキタ 鉄筋結束装置
TWI766300B (zh) 2015-07-22 2022-06-01 日商美克司股份有限公司 捆束機
WO2017014266A1 (ja) 2015-07-22 2017-01-26 マックス株式会社 結束機
EP3327223B1 (de) 2015-07-22 2020-04-15 Max Co., Ltd. Bindemaschine
RU2689108C1 (ru) 2015-07-22 2019-05-23 Макс Ко., Лтд. Обвязочная машина
JP6750354B2 (ja) 2015-07-22 2020-09-02 マックス株式会社 リール
JP6698425B2 (ja) * 2016-05-20 2020-05-27 株式会社マキタ 鉄筋結束機
DE102017208453A1 (de) * 2016-08-09 2018-02-15 Robert Bosch Gmbh Handwerkzeugmaschine
FR3058585B1 (fr) * 2016-11-09 2019-08-30 Nexans Touret pour cable electrique
FR3058586B1 (fr) * 2016-11-09 2018-11-09 Nexans Touret pour cable electrique
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US11529669B2 (en) 2019-12-17 2022-12-20 Makita Corporation Rebar tying tool
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CN113264212B (zh) * 2021-05-08 2022-08-16 济客筑科技(太仓)有限公司 一种多轴机器人的点阵式钢筋捆扎系统的工作方法
KR102517674B1 (ko) * 2022-01-10 2023-04-05 (주)제노스 전선 권취 릴
US11734419B1 (en) 2022-06-23 2023-08-22 Sas Institute, Inc. Directed graph interface for detecting and mitigating anomalies in entity interactions
CN115709831A (zh) * 2022-12-16 2023-02-24 台州市新大陆电子科技有限公司 一种基于电信号的自动送丝捆扎机、送丝控制方法

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB369500A (en) * 1930-08-02 1932-03-24 Kodak Ltd Improvements in or relating to winding apparatus for motion picture film
US2708892A (en) * 1952-02-27 1955-05-24 White Sewing Machine Corp Sewing machine
SU543442A1 (ru) 1975-02-04 1977-01-25 Одесское специальное конструкторское бюро специальных станков Намоточное устройство
FR2577594A1 (fr) 1985-02-18 1986-08-22 Yuguchi Sadao Dispositif d'attache de barres d'armature
CN1129431A (zh) 1993-08-16 1996-08-21 便达固股份有限公司 物品的捆扎方法和捆扎装置
US5582355A (en) * 1994-02-15 1996-12-10 Juki Corporation Bobbin thread removing device
TW312672B (de) 1995-02-17 1997-08-11 Bentatsuku Kk
JP2003175905A (ja) 2001-09-28 2003-06-24 Max Co Ltd 鉄筋結束機及びリール
JP2004027765A (ja) 2002-06-28 2004-01-29 Max Co Ltd リール及び鉄筋結束機
JP2004059017A (ja) 2002-07-25 2004-02-26 Max Co Ltd 鉄筋結束機及びリール及びリールの回転検出方法
WO2004021368A1 (en) * 2002-08-30 2004-03-11 Molex Incorporated Harness fabricating apparatus
EP1430971A1 (de) * 2001-09-28 2004-06-23 Max Kabushiki Kaisha Maschine zum verrödeln von bewehrungen und für die maschine verwendete rolle
EP1439015A1 (de) 2001-09-28 2004-07-21 Max Kabushiki Kaisha Maschine zum verrödeln von bewehrungen, rolle und verfahren zur erfassung der drehung der rolle
JP3598784B2 (ja) 1997-12-02 2004-12-08 マックス株式会社 鉄筋結束機におけるワイヤリールのブレーキ機構
JP2005194847A (ja) 2004-01-09 2005-07-21 Max Co Ltd 鉄筋結束機、ワイヤリール及びワイヤリールの識別方法
US20050199790A1 (en) 2004-03-09 2005-09-15 Hong-Cheng Sheu Rotary optical encoder
CN1969101A (zh) 2004-06-18 2007-05-23 美克司株式会社 钢筋捆扎机和钢丝卷筒
CN1985058A (zh) 2004-07-16 2007-06-20 美克司株式会社 钢筋捆扎机
US20090090801A1 (en) * 2007-10-04 2009-04-09 Klaus Walter Roehr Schnakenbeck Sidewall thread bobbin
US20090283167A1 (en) 2008-05-19 2009-11-19 Max Co., Ltd. Wire reel, reinforcing bar binding machine, and rotational information detecting method
US7798180B2 (en) * 2002-08-30 2010-09-21 Molex Incorporated Harness fabricating apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1458155A (en) * 1920-12-03 1923-06-12 Herbert E Shreeve Wire-marking device
JP2557192Y2 (ja) * 1993-04-19 1997-12-08 マックス株式会社 鉄筋等の結束機用のワイヤリール
US5833423A (en) * 1995-03-01 1998-11-10 Canon Kabushiki Kaisha Bind tape used with bookbinding apparatus
RU2304482C2 (ru) * 2001-09-28 2007-08-20 Макс Кабушики Кайша Машина для скрепления арматуры, барабан для такой машины и способ контроля вращения барабана
JP4396384B2 (ja) * 2004-05-07 2010-01-13 マックス株式会社 鉄筋結束機

Patent Citations (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB369500A (en) * 1930-08-02 1932-03-24 Kodak Ltd Improvements in or relating to winding apparatus for motion picture film
US2708892A (en) * 1952-02-27 1955-05-24 White Sewing Machine Corp Sewing machine
SU543442A1 (ru) 1975-02-04 1977-01-25 Одесское специальное конструкторское бюро специальных станков Намоточное устройство
FR2577594A1 (fr) 1985-02-18 1986-08-22 Yuguchi Sadao Dispositif d'attache de barres d'armature
US4685493A (en) 1985-02-18 1987-08-11 Sadao Yuguchi Reinforcing bar binding device
CN1129431A (zh) 1993-08-16 1996-08-21 便达固股份有限公司 物品的捆扎方法和捆扎装置
US5682927A (en) 1993-08-16 1997-11-04 Bentac Co., Ltd. Tying method and tying apparatus for articles
US5582355A (en) * 1994-02-15 1996-12-10 Juki Corporation Bobbin thread removing device
TW312672B (de) 1995-02-17 1997-08-11 Bentatsuku Kk
US5944064A (en) 1995-02-17 1999-08-31 Japan Automatic Machine Co., Ltd. Tying method and tying apparatus for articles
JP3598784B2 (ja) 1997-12-02 2004-12-08 マックス株式会社 鉄筋結束機におけるワイヤリールのブレーキ機構
EP1430971A1 (de) * 2001-09-28 2004-06-23 Max Kabushiki Kaisha Maschine zum verrödeln von bewehrungen und für die maschine verwendete rolle
EP1439015A1 (de) 2001-09-28 2004-07-21 Max Kabushiki Kaisha Maschine zum verrödeln von bewehrungen, rolle und verfahren zur erfassung der drehung der rolle
JP2003175905A (ja) 2001-09-28 2003-06-24 Max Co Ltd 鉄筋結束機及びリール
CN1561271A (zh) 2001-09-28 2005-01-05 美克司株式会社 钢筋捆扎机、卷盘和检测卷盘旋转的方法
CN1561269A (zh) 2001-09-28 2005-01-05 美克司株式会社 钢筋捆扎机和用于该机器的卷盘
US20050061389A1 (en) 2001-09-28 2005-03-24 Max Kabushiki Kaisha Reinforcement binding machine, reel, and method of detecting rotation of reel
US20050077413A1 (en) 2001-09-28 2005-04-14 Max Kabushiki Kaisha Reinforcement binding machine and reel used for the machine
US20090126824A1 (en) 2001-09-28 2009-05-21 Max Kabushiki Kaisha Reinforcement binding machine, reel, and method of detecting rotation of reel
JP2004027765A (ja) 2002-06-28 2004-01-29 Max Co Ltd リール及び鉄筋結束機
JP2004059017A (ja) 2002-07-25 2004-02-26 Max Co Ltd 鉄筋結束機及びリール及びリールの回転検出方法
WO2004021368A1 (en) * 2002-08-30 2004-03-11 Molex Incorporated Harness fabricating apparatus
US7798180B2 (en) * 2002-08-30 2010-09-21 Molex Incorporated Harness fabricating apparatus
EP1612348A1 (de) 2004-01-09 2006-01-04 Max Kabushiki Kaisha Verstärkungsstabbinder, drahtrolle und verfahren zur identifizierung einer drahtrolle
US20060283516A1 (en) * 2004-01-09 2006-12-21 Max Kabushiki Kaisha Reinforcing bar binder, wire reel and method for identifying wire reel
JP2005194847A (ja) 2004-01-09 2005-07-21 Max Co Ltd 鉄筋結束機、ワイヤリール及びワイヤリールの識別方法
US20050199790A1 (en) 2004-03-09 2005-09-15 Hong-Cheng Sheu Rotary optical encoder
CN1969101A (zh) 2004-06-18 2007-05-23 美克司株式会社 钢筋捆扎机和钢丝卷筒
US20070227613A1 (en) 2004-06-18 2007-10-04 Atsushi Matsuoka Reinforcing Bar Binding Machine and Wire Reel
CN1985058A (zh) 2004-07-16 2007-06-20 美克司株式会社 钢筋捆扎机
US20070199610A1 (en) 2004-07-16 2007-08-30 Max Co., Ltd. Reinforcing Bar Binding Machine
US20090090801A1 (en) * 2007-10-04 2009-04-09 Klaus Walter Roehr Schnakenbeck Sidewall thread bobbin
US20090283167A1 (en) 2008-05-19 2009-11-19 Max Co., Ltd. Wire reel, reinforcing bar binding machine, and rotational information detecting method
JP2010001727A (ja) 2008-05-19 2010-01-07 Max Co Ltd ワイヤリール、鉄筋結束機及び回転情報の検出方法
US20140091171A1 (en) 2008-05-19 2014-04-03 Max Co., Ltd. Wire reel, reinforcing bar binding machine, and rotational information detecting method

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
A Canadian Office Action dated Jan. 19, 2016 that issued in corresponding Canadian Patent Application No. 2,665,021.
A Canadian Office Action dated May 29, 2015 that issued in corresponding Canadian Patent Application No. 2,665,021.
A European Office Action dated Aug. 21, 2015 from corresponding European Application No. 09005936.1 (6 pages).
Extended European Search Report dated Nov. 5, 2014 in corresponding European Patent Application No. 09 00 5936.
Office Action dated Mar. 23, 2016 from corresponding European Patent Application No. 09005936.1 (6 pages).
Office Action dated Nov. 9, 2016 from corresponding European Patent Application No. 09005936.1 (5 pages).

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10532838B2 (en) * 2006-10-27 2020-01-14 Husqvarna Ab Consumable authentication

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